Dubro 2 1/4" Spinner (2 Blade) Black

This is the Dubro 2-1/4" Size Black Spinner.

FEATURES:
Constructed of 100% Virgin Nylon for maximum strength.
Pre-trimmed for 2 blade propeller.
Uses a unique nylon insert lock design for connecting the backplate
    and spinner-giving a strong and safe and secure hold.
Four shaft adapters, 6mm, 1/4", 7mm, 5/16", eliminates need to drill
    out backplates.

INCLUDES:
One Dubro 2-1/4" Size Black Spinner with backplate, four shaft
    adapters, and 2 3.5mm x 18mm socket head cap screws.

REQUIRES:
Lining up pins in nose cone to backplate and fastening into pre-
    installed locknuts with the 2 socket head cap screws.
7/64" ball motorist

SPECS:
Size: 2.25" (57mm) at base
Length: 2.44" (62mm) from backplate to tip

Many others have bought this thing along with the thing that you are presently checking out.

12x6 Sport Propeller

This is a 12x6 Aircraft Propeller. It is a "tractor" (not a "pusher") Prop.

FEATURES:
Computer-optimized design gives these props a thinner profile
    and more "bite" with less noise.
Lightweight formed nylon construction minimizes rotating mass for
    higher output and longer life.
Reinforcing carbon fibers assist maintain true, constant pitch at
    Any RPM.
"C2" design (see REMARKS).

CONSISTS OF:
One Carbon-Reinforced NYLON Propeller

NEEDS:
ALL props require balancing, this is ESSENTIAL, use TOPQ5700.
May need prop reamer, use GPMQ5005 (SAE) or FOXQ1520 (Metric)

SPECS:
Length: 12" Pitch: 6
Thickness at center: 1/2" Hole diameter: 1/4"

REMARKS:
The "C2" represents the production run in which it was made.